Well, it's raining in Southern California, and there's no outside work. 100 deg F last week, rain this week. So, here's another post.
As far as a combo TV/DVD player, have you thought of killing two birds with one stone (in a metamorphic sense, of course)? Get a laptop computer and that will be able to play DVDs whilest it does your navigation, and keeps you in constant touch with the C-Brats, via WiFi. Get the cheapest one, cause they're all assembled from stock components, etc. You-all will need a small inverter ($25 at Cut Rate Auto) to keep the battery charged.
They do sell them, they just have a different name.
Boris